User manual

user manual
TA-890
TA-890 user manual
Page 84
The gain should be set to match the signal from the source, e.g. mixer, controller, or
equaliser.
Attenuation & Gain Setting
The front panel gain controls allow precise level settings, and may be used to adjust the
relative levels of sections of a large system, for example downfills or side seating cover in an
arena.
The front panel gain controls are also useful when initially checking a system after it has
been connected up.
Note that in BRIDGED mode only the Channel A control is active.
Output Connections
A Speakon NL4 connector is provided on each channel.
Damping Factor
The T series amplifier outputs provide a high damping factor, typically 400 times at low audio
frequencies. This damping helps the amplifier to control the loudspeaker drive units,
provided that the resistance of the intervening cables and connectors is very low. The sonic
benefits of high damping factor are most pronounced at bass and low-midrange frequencies
(i.e. 10 to 600Hz) providing a subjectively tighter sound as a result of the improved
reproduction of transients.
Amplifier damping factor is degraded by high resistance in the loudspeaker circuits; i.e. thin
conductors, long output cable runs and tarnished, corroded or loose connections.
Damping factor is maximised by installing cables containing conductors of large cross-
sectional area, and by specifying connectors with heavy-duty contacts and waterproof covers.
The cable sets supplied with Aspect systems are manufactured to a high specification with
these considerations in mind.